Induced spin polarisation in a ferromagnetic gadolinium-yttrium alloy

Details Induced spin polarisation in a ferromagnetic gadolinium-yttrium alloy Induced spin polarisation in a ferromagnetic gadolinium-yttrium alloy

1999-06-11

arxiv.org/abs/cond-mat/9906171v1

Physics

Condensed Matter

4 pages, 2 figures

Scientific paper

The first direct evidence of an induced spin moment in Gd(62.4)Y(37.6) is presented. This additional moment, of 0.16 +/- 0.03 Bohr magnetons, arises from polarisation of Y electrons in the alloy. The moment was detected in a Compton scattering experiment via the measurement of the one dimensional projection of the momentum space electron spin density in Gd and in the alloy. The result is consistent with theoretical predictions calculated using the LMTO method within the local spin density approximation.

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